US 12,263,078 B1
Customized dermatome for skin grift transplantation
Aren M Hellum, Wakefield, RI (US)
Assigned to The United States of America as represented by the Secretary of the Navy
Filed by The United States of America as represented by the Secretary of the Navy, Newport, RI (US)
Filed on Sep. 10, 2021, as Appl. No. 17/471,245.
Int. Cl. A61F 2/10 (2006.01); B33Y 50/00 (2015.01); B33Y 80/00 (2015.01)
CPC A61F 2/105 (2013.01) [B33Y 50/00 (2014.12); B33Y 80/00 (2014.12); A61F 2240/00 (2013.01); A61F 2240/002 (2013.01)] 1 Claim
OG exemplary drawing
 
1. A customized dermatome skin graft transplantation system comprising:
a wide area network which communicates with at least one fabrication constraint server;
a sender device which captures a wound site image from a wound site and transmitting signals of the wound site image over said wide area network;
a digital photographic imaging module operationally connected to and which receives the signals from said wide area network and interpreting data reflecting the wound site image with data of fabrication constraints provided by the at least one fabrication constraint server;
a data store;
a spatial coordinate processing module in said data store with said spatial coordinate processing module operationally connected to said digital photographic imaging module wherein said spatial coordinate processing module analyzes the wound site image as well as the fabrication constraints and determining a set of spatial coordinates to define a shape substantially matching the wound site and wherein said spatial coordinate processing module which is in data communication with said wide area network to direct input from said wide area network to said data store for storage and retrieval;
a three-dimensional metal deposition printer operationally connected to said spatial coordinate processing module for using the set of spatial coordinates and for using manufacturing instructions which are stored in said data store to create additive manufacturing instructions;
an additive manufacturing means operationally connected to said three-dimensional metal deposition printer, said additive manufacturing means which uses the additive manufacturing instructions to create a graft stencil die having a pattern substantially complementary to the wound site image;
wherein said graft stencil die is configured to guide slicing of donor material to produce a graft flap in a pattern of said graft stencil die and suitable for surgical attachment and wherein said graft stencil die is further configurable to be positionable on an area of skin defining a boundary of the donor material and to be compressed on the area of skin to present the donor material for surgical harvesting;
wherein the donor material is selected from a group consisting of an autologous tissue graft type and a synthetic skin graft material type;
wherein said spatial coordinate processing module is further operable to determine the set of spatial coordinates in two dimensions that comprise a geometric substantially-fractal pattern.